Electrical connecter



Sept. 15, 1936. c. OUELLET ELECTRICAL CONNECTER v Filed March 8, 1934220 at zzef Patented Sept. 15, 1936 PATENT OFFICE ELECTRICAL CONNECTERLo C. Ouellet, Edmu Canada, assignor of ndston, New Brunswick,twenty-five per cent to Dr. E. A. Martin, Edmundston, New Brunswick,Canada Application March 8,

1934, Serial No. 714,667

In Canada March 14, 1934 2 Claims.

The present invention relates to improvements in electrical connecterconstruction.

An object of the invention is to provide an easily connected two-partconnecter for connecting electrical circuits.

A further object of the invention is the provision of an electricalconnecter embodying two resiliently interlocking parts.

Another object of the invention is the provision of an electricalconnecter which will afford efficient and positive electrical connectionbetween contact elements.

A still further object of the invention is the provision of anelectrical connecter of the above character which is relatively simpleand durable in construction.

Other objects and advantages of the invention will become apparent asthe description progresses.

In the accompanying drawing forming a part of this specification and inwhich like reference characters are employed to designate correspondingparts throughout the same:-

Figure l is a side elevational view of the connecter showing the partsin assembled interlocking relation,

Figure 2 is a similar view showing the two elements in separatedrelation,

Figure 3 is a longitudinal section through the connecter elements inseparated relation,

Figure 4 is a similar view through the elements in connected relation,

Figure 5 is a transverse sectiontaken on the line 55 of Figure 1, and

Figure 6 is a side elevational view, partly in section, illustrating theconnection of the connecter forming elements.

Referring to the drawing, wherein for the purpose of illustration isshown a preferred embodiment of the invention, the numeral III generallydesignates the female or receptacle element of the connecter and thenumeral ll generally designates the male or plug element thereof.

The receptacle element Ill is preferably in the form of a roundelongated body having an exterior taper intermediate the ends forming anenlarged end portion I2 and a reduced end portion I3. The receptaclebody I0 is preferably to be formed of soft or resilient rubber and isformed interiorly to provide a tapered conical bore I4.

Adjacent the enlarged end I2, the interior bore of the bodyis formedwith an mnular continuous groove I5.

Upon the reduced end I3 of the body is tightly fitted a contact shell I!formed of metal or other suitable conducting material covering the endportion ofthe body and provided with an annular flange I8 formed toprovide exterior screw threads. The shell is formed with a centralaperture I9 coinciding with the opening formed at the reduced end of theinterior bore I4.

Within the body I II is mounted an arcuate contact piece 20 partiallyembedded in the wall of the body and partially projecting into theinterior bore I4, said contact piece being-disposed in a circumferentialposition in the bore. A connecting wire 2| electrically connects thecontact piece 20 with the flange I8 of the terminal shell l1.

The complementary male element II of the connecter mainly constitutes atapered conical body having a relatively short round base portion 23exteriorly screw threaded. In the end of the base portion 23 is formedan annular indentation 24 divided by a diametrically extending centrallydisposed rib 25. In the enlarged end portion of the male or plug elementII are formed a pair of interiorly threaded bores 26 adapted to receivetherein a pair of binding screws 21. The binding screws 21 cooperatewith conducting terminal plates 28 and 29 and are disposed to connectconductors 30 and 3| of an electric cable 32 therewith.

On the reduced end or tip of the conical plug element I I is secured acontact cap 34 electrically connected with the terminal of the plate 28through the medium of a conducting wire 35 extending longitudinallythrough a bore in the plug body. Upon the intermediate portion of theconical plug body is secured an annular contact ring-36 partiallyembedded in the plug and partially projecting radially outward thereof.As shown at Figure 4, the contact ring 36 is disposed on the plug insuch position that when the connecter elements are assembled theexterior face of the ring will contact with the projecting face of thearcuate contact piece 20. The ring 36 is electrically connected with theterminal plate 29 by means of a conducting wire 31 extendinglongitudinally through a bore in the Y plug body.

Adjacent the enlarged base end the conical plug body is formed with anannular half-round ridge 38 adapted, when the elements In and II areinterlocked, to resiliently engage the annular groove IS in thereceptacle element.

The enlarged base end of the plug element II is normally covered by aflanged cover cap 40 tnreadedly mounted thereon and preferably formed ofhard rubber or similar insulating material. The cover cap 40 is formedwith a central flanged opening 4| through which the electrical cable 32is extended.

To connect the receptacle and plug elements of the connecter, it ismerely necessary to insert the plug within the bore of the receptacle,the resiliency of the receptacle body permitting the ridge 38 of theplug to be frictionally forced into engagement with the groove P5 in thereceptacle to effect an interlocking engagement of the elements. Whenthus assembled, the cap 34 on the tip of the plug will project throughthe reduced opening in the shell covered end of the receptacle, as shownat Figure 4, so that both the terminal cap 34 and the shell I8 maycontact with the electrical terminals in a threaded socket or the like.The terminal ring 36 on the plug makes a good positive contact with thearcuate receptacle contact piece 20, making connection between theconductors 30 and 3| of the cable with the contact cap 34 and thecontact shell l1.

It will be readily apparent that this construction will greatlyfacilitate connection as well as disconnection of the elements and willenable assembly of the connecter with rapidity and ease.

It is to be understood that the form of my invention herein shown anddescribed is to be taken as a preferred example of the same and thatvarious changes as to the shape, size and arrangement of parts may beresorted to without departing from the spirit of the invention or thescope of the subjoined claims.

Having thus described my invention, I claim:

1. In an electrical connecter, a female element of resilient materialhaving an outwardly diverging wall and being apertured at the small end,

said element having a circumferential channel near the larger end, aconverging complementary male plug of rigid material adapted to enterthe female element and extend through the small end, and acircumferential ridge on the male element adapted to engage thecorresponding channel in the female element for interlocking purposesdue to the inherent resiliency of said female element.

2. In an electric appliance of the character described, aresilient-material female element having a ferrule adapted to beelectrically connected with one side of an electric line and providedwith an inside circumferential channel, said element having an outwardlydiverging wall and apertured at the smaller end of said wall, aconverging complementary male plug of rigid material adapted to enterthe female element, an

LEO c. OUELLET.

